From e4eff1a622edd6ab7b73acd5d8763aa2fa3fee49 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sat, 14 Jul 2007 15:39:58 -0400 Subject: SUNRPC: Clean up the sillyrename code Fix a couple of bugs: - Don't rely on the parent dentry still being valid when the call completes. Fixes a race with shrink_dcache_for_umount_subtree() - Don't remove the file if the filehandle has been labelled as stale. Fix a couple of inefficiencies - Remove the global list of sillyrenamed files. Instead we can cache the sillyrename information in the dentry->d_fsdata - Move common code from unlink_setup/unlink_done into fs/nfs/unlink.c Signed-off-by: Trond Myklebust --- fs/nfs/nfs4proc.c | 50 ++++++++++++++------------------------------------ 1 file changed, 14 insertions(+), 36 deletions(-) (limited to 'fs/nfs/nfs4proc.c') diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 23dc25dbc6fa..6ca2795ccd9c 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1962,48 +1962,26 @@ static int nfs4_proc_remove(struct inode *dir, struct qstr *name) return err; } -struct unlink_desc { - struct nfs_removeargs args; - struct nfs_removeres res; -}; - -static int nfs4_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, - struct qstr *name) +static void nfs4_proc_unlink_setup(struct rpc_message *msg, struct inode *dir) { - struct nfs_server *server = NFS_SERVER(dir->d_inode); - struct unlink_desc *up; + struct nfs_server *server = NFS_SERVER(dir); + struct nfs_removeargs *args = msg->rpc_argp; + struct nfs_removeres *res = msg->rpc_resp; - up = kmalloc(sizeof(*up), GFP_KERNEL); - if (!up) - return -ENOMEM; - - up->args.fh = NFS_FH(dir->d_inode); - up->args.name.len = name->len; - up->args.name.name = name->name; - up->args.bitmask = server->attr_bitmask; - up->res.server = server; - nfs_fattr_init(&up->res.dir_attr); - + args->bitmask = server->attr_bitmask; + res->server = server; msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_REMOVE]; - msg->rpc_argp = &up->args; - msg->rpc_resp = &up->res; - return 0; } -static int nfs4_proc_unlink_done(struct dentry *dir, struct rpc_task *task) +static int nfs4_proc_unlink_done(struct rpc_task *task, struct inode *dir) { - struct rpc_message *msg = &task->tk_msg; - struct unlink_desc *up; - - if (msg->rpc_resp != NULL) { - up = container_of(msg->rpc_resp, struct unlink_desc, res); - update_changeattr(dir->d_inode, &up->res.cinfo); - nfs_post_op_update_inode(dir->d_inode, &up->res.dir_attr); - kfree(up); - msg->rpc_resp = NULL; - msg->rpc_argp = NULL; - } - return 0; + struct nfs_removeres *res = task->tk_msg.rpc_resp; + + if (nfs4_async_handle_error(task, res->server) == -EAGAIN) + return 0; + update_changeattr(dir, &res->cinfo); + nfs_post_op_update_inode(dir, &res->dir_attr); + return 1; } static int _nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name, -- cgit v1.2.2